#Create three features population pyramids of family based on knowledge and hypothesis their shape.
#Investigate the impact of changing fertility rates in rural and urban parts of the country and explain why?
#investigate the impact of increasing numbers of elderly people in the population and explain why?
#propose a range of actions to help deal with the increasing number of elderly.
Answers
Answer:
A population pyramid, also called an "age-gender-pyramid", is a graphical illustration that shows the distribution of various age groups in a population (typically that of a country or region of the world), which forms the shape of a pyramid when the population is growing.
A population pyramid is a way to visualize two variables: age and sex. They are used by demographers, who study populations. A population pyramid is a graph that shows the distribution of ages across a population divided down the center between male and female members of the population. The graphic starts from youngest at the bottom to oldest at the top. It is called a population pyramid because when a population is growing (there are more babies being born than there are people dying), the graphic forms the shape of a triangle. A population pyramid can be used to compare differences between male and female populations of an area. They also show the number of dependents (children and, sometimes, elderly people) and general structure of the population at any given moment.
There are three main trends in populations that affect the shape of a population pyramid. The first is when there are both high fertility and high mortality rates among younger members. This type of population, known as “expansive,” creates a sharp triangle shape in the graph. Expansive pyramids mean that the population does not increase much in total number and has many young people. The second trend, known as “constrictive,” is when there is a lower mortality rate with the fertility rate remaining constant. These population pyramids are wider in the middle of the graph as the population has high numbers of middle aged and elderly people, but fewer young people. The third trend is “stationary” which is a population with low mortality and low fertility rates. These graphs have a square or “pillar” shape rather than a pyramid one. These population pyramids represent a stable population that will not change significantly barring any sudden changes to fertility or mortality rates.
Population pyramids are useful for studying the future of a region as well as examining historical and current population trends. If part of the population has been affected by sudden changes, such as casualties from armed conflict, high female mortality in childbirth, or the migration of young workers out of poorer regions, the graph will offer a way to visualize how the future population will be affected. They can also help direct government and private industry distribution of services for regions based on population needs.
Explanation:
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